Mower compaqy



(No Model.) 2 Sheets-Sheet 1.

SD. C. MARKHAM.

. HAREN. No. 386,021. Patented July 1o, 1888'.

am A mul ||||||l|w Ilm-nm (No Mode'l.) 2 Sheets-Sheet 2.

D. o. MARKHAM.

HARRUW. No. 386,021'.` I Patented July 10, 1888I Rif-Iig mums rim Inc.. imm.. umlimw. n. L

iii

?nivfrffOrinlcngfA Y' DEI/VITI iuAiKi'ihiL on Urrea., N n\v"YoRK, Assiononiro 'rim 'E UREK 1 ,MownnCoiicANiy oir-satin ITI-Aon g HAR nowt 'sPncrmcATroN fsrming pa'rt-ofLeaersPa-nnt Nofaeogi, aafealruiy 10,1888.

- Application tiled February 9.1.1988. SevrinlNmQSfOfiJ. '(o'niodi-L-i.

whom, it may concern: :Si Be it known that 1 1, DnwifrT-G.V M initnim, acitizenof tlieUnited States, residing at Utica,

lili tliecount'y of Oneida and State ot'Nen-"York,

have invented certain iiew anduscfnl Improve- .'ments'in'zI-arrows; and vI do hereby dec-lare to-inakeand n sefthe saine. ,i i My Vinvention relates particularly to iinprovenie'nts in that classo'f 'harrows iii-which curved spriiigfteeth are employed, although adapted to other foi-ins of teeth;.aii d it consists of novel -means'for fastening teeth to the frame, ishereinaftcr described. -and particularly irri'ed.

v,H-itllertoit has generally been the practice tofastn spi-ingv curved .teeth to theeross-heain at the point ot' intersection of the cross-beam with theA draft-bai',v or toa dat or curved seat.' formed on or secured to such benin,- or tothe.

draftberlin connection with the cross-bcani.

In -iny invention the tooth is not fastened to or connected with the cross beam or top sur vv:face ofthe fraine at' all, and I 'dispense alto- "gather with .a sl'iecially-{oi-nied seat; and in placent-'such constructions I fasten the tooth directly'to the draft-bai' at anyv point desired thereon by ineens of an adjustable Vclip placed between the walls ofv a channeled draftbar, whereby the wallsof said har hold the clip in place and are iliade 'the seat of the tooth, and

bar, or- -forward or backward, to regulate its ASent; as hereinafter described.

5o viFignre 1` isa perspective view of a barrow f Iain also aware that it is old to coiistrncta clip having lugs and pi'oicctioiis,so that when thecurved-end ofa tooth is placed on thc nppersnr'faee of the cross-benin, and such clip placed thereon and bolted to the saine, the

'of clip hearing on the shank of the'tooth the tooth; vvbut one object ol' iny invention is-to so` ri'g-idlycoinbine a draft-bai', tooth, and vclip that there can be no vibration in any direc-- -'ti on, either of the clip itself orof the tooth.'

AMy invention is illustrated in the accompa- Dying drawings, in which- =a`nd 'Figs.-7, 8,' 9, 10, and'lt are also stated', are coni'p'osed of nj.

t -Oflj with my ii'nprov-eineniI atiacli'cd; Fig. 2, a plan View vof a 'portioneaeh ofa channel ,draft-bar, tooth, and clip connected. in accordance with my invention; Fig. 3, an end view; Fig.,4,' an' edge-view of the eli-p employed.;` Fig.=5,a'ni`odi fication; Fig. 6, a detail of such modification; niodiliea-j tions and details thereof.

tcferringfto ythe v,dr draft-'bars of a e haci@ tore i y B are the cross beams place ,niiper plain surface of the chaiinel-bars and {'etwecn ythe pointsf intersection of the teeth and bars.4

Double-channeled or H shaped bars 'niay lie used, it' desired, wtngnt .departing froin niv invention. v

. f n the'drawings,a Vshapcd barrow -is sh'own initwo parts joined together by-:hinges E. Thesehiiiges are forined by making eyes in the ends ot' the bars, lapping the saine, andputtinga bolt thronghthe eyes; or 'in place ot' separate bolts a rod might. be passed through overlapping ends of the bars from 'one side tol the other and secured thereto by nuts; or the aw in gs, A represents the parts may be hinged together by anyot-her well-known device.

F is a elipor strap formed with the central span,9,shonlders-e and lugs i, having holes for theinsert'ion ot' screw-bolts. The channelba'r is also provided with holes, thronghwhich said bolts areinsertcd.

His a spring-tooth having a flat shank, h. 'In putting-'the parts'together theshank h of the tooth islaid on the walls of the bar, the

tlii'on'gh the lugs ofthe clip Aand the channel-l ,ba' and secured tightly andv held/iii place' by nuts on the opposite sideof the chan nel-bar. It'will be seen that by thc use of this 'forni ends of the clip'aic held above the bottoni oi" f the channcl`, even when screwed down tightly,

.leaving a space between the lng's land t'lic channel-bottoni. This-space thus 'affords opportnnity for additional tightening of the clip` rest between the walls of the' channehbar,` and ICO lIfigs. 5` and 6.

Holes may be pnt at any place along the channel-bal-,soas to tix the teeth at any desired position on the draft-bar, and as near together as desired, so as to secure a thorough pu-lverization ofthe soil. The position of the clip thus not depending on vthe intersectionof the cross-beam and draft-bar, the erossbeams are only used to connect and stillen the draftbars in making th'e trame, and as few cross-beams .as are simply necessary for this purpose are therefore used, two being suleient in some cases. Ceonomy in the use of cross bars is thus attained. Wood or metal cross-beams may be employed. 4 'lhe modification shown in Figs. 7 and S consists of a clip in two partsa bottom plate, o, provided with ledges p and placed within the walls of the channelbar, and a top plate, It. The shauk'of' the tooth rests on the channelbar, the ledgesp embrace its sides, wh ile screws S are usedy to connectthe top and bottom plates, andthns hold the parts vsecurely together andrin place. u

Fig. 9 shows a double clip, composed of the two plates t t, with the tootheshank resting on the channel-walls, the plates t t onthe tooth, and screw-bolts I',emplycd to fasten the toothshank securely to the channel-iron, said bolts passing through the iron and abutting against its walls, as shown,to prerent lateral mot-ion. Fig. 10 shows four pins, '13, put through the web'of-t}|echannel-iron withtheir tops engaging the edges ot' the tooth, which answersthe same'pnrpose as a dip-plate. y I

Fig. 11 shows the toolh let into the flanges ofthe channel, with a straight clip, 1r, on top,to

be held by screw-bolts.

`It will be noticed that the clip is not only adjustable but reversible-that is, il* double channetiron is used the clip can be pnt, on either the top or bottom channel and the tooth fastened either to the top or bottom ofthe draft-bar.

It will also be noticed thatI do not Aconfine myself to a particular form ofharrow, clip, or tooth, and that no special adaptation or lorm of seat is necessary, except the walls ofthe channel-bar.

1. In aliarrow, the combination,with a channel draftbar having its walls placed vertically, of a tooth mounted on the plain edges of said walls, and a clip to holdsaid tooth'firmly.in such position, substantially.asileseribed.

2. In a harrow. the combination of the channel draft-bar haring its walls placed vertically, a tooth mounted on the plain edges of said walls, and a clip extending over said tooth and confined by the walls ot' sadbar, substantially as described.

3. In eoxnbination.\\'ith a barrow-tooth, the

tooth-clip formed wit-h the central span, 9,'

shoulder 1:,"and lugs i, and aehanncled bar, the said central span, g, extending above the walls of said bar, so as to accommodate and' hold the shank of t-he tooth placed on the said walls, and the vsaid lugs'ext'ending between the walls of th'e bar, substantiallyV as described.

4. In a harrow, the combination of lthe channeldraftbar, the tooth mounted onV the plain edges of said bar, and the clip mounted -on andV spanning the tooth and heldl by -said tooth above the bottomof the channel, whereby the saidV clipacts upon the said toothabove the channel-bar, substantially as andl Vfor the` purpose described.

l In testimonywhereot' I affix )ny signature in presence of two witnesses.

Dicwrr'r o. MARKHAM. W'i t nesses:

C. L. NVILLIAMS, M. XV. -Ross. 

